Useful Functions; Teaching Function - Panasonic HG-F1 Series Manual

Compact & Long Range Laser Distance Sensor

Useful functions

Teaching function

Normal sensing mode
2-point teaching
Basic teaching method
① ②
TEACH
②
TEACH
①
Background Sensing
object object
The threshold value is set automatically at
the midpoint between the two points
specified by teaching.
Window comparator mode
1-point teaching
OFF
ON
OFF
Sensing
object
This method performs one-point teaching
for the distance to the reference surface of
the sensing object and sets the value
obtained by subtracting the amount of
shift from the result in threshold value 1
and the value obtained by adding the
amount of shift to the result in threshold
value 2.
Zero set function
This function compulsorily sets the measured value to "zero."
The zero point can be set at a desired value. It is useful
when measuring steps or tolerance with reference to the
height of a sensing object.
Keep pressing both keys for 3 seconds.
* The zero set indicator (yellow) will turn ON while the zero set is valid.
* If the zero set function is executed while the peak / bottom hold function is valid,
the held measurement value will be reset and the zero set function cannot be set.
* If the peak / bottom hold function is enabled while the zero set setting is valid, the
zero set setting will be cancelled.
* If an error occurs, the zero set function cannot be set.
* An external input can be used to set the zero set function.
6 Panasonic Industry Co., Ltd.
Useful teaching method for when there is a very small object or background object.
< When using background object as reference >
ON
TEACH
OFF
Background
object
When the sensing object is located closer
to the sensor than the background object,
the threshold value for detection is set.
With an object below the sensor, press the TEACH key to set the valid range for distances via
threshold values. In addition, a single output can be used to judge whether two thresholds are
within the range of "Pass" and outside the range of "Fail."
2-point teaching
* Set to Light-ON
Threshold
value 1
Reference
surface
Threshold
value 2
Sensing
object 1
This method performs two-point teaching
(sensing objects 1 and 2) for the two
reference surfaces and sets the results in
threshold value 1 and threshold value 2.
Limit teaching
Threshold value
Use DOWN key for adjustment.
Teaching value
* Set to Light-ON
OFF
1st measurement
(Threshold value 1)
ON
2nd measurement
(Threshold value 2)
OFF
Sensing
object 2
External input setting function
One of three functions, "zero set function," "teaching
function" and "emission stopping function" can be assigned
to an external input line.
< When using sensing object as reference >
TEACH
Teaching value
Use UP key for adjustment.
Threshold value
Sensing
object
The threshold value is set on the
background object side with reference to the
sensing object. Use this method when there
is a long distance to the background object.
3-point teaching
* Set to Light-ON
1st measurement
OFF
ON
2nd measurement
OFF
3rd measurement
Sensing Sensing Sensing
object 1 object 2 object 3
This method performs three-point teaching
(sensing objects 1, 2 and 3) for the three
references surfaces and sorts the teaching
results in the descending order (Max, Middle,
Min). Then, it sets the intermediate value
between Min and Middle in threshold value 1
and sets the intermediate value between
Middle and Max in threshold value 2.
Assign any one.
+V
Zero set
0 V
Teaching
External
Emission stop
input
Control
output
Analog output
Selectable either
analog voltage output 0 to +5 V or
analog current output 4 to 20 mA
Analog ground (shielded)
Threshold
value 1
Threshold
value 2